Transceiver; Access To Internal Parts - Tokyo Hy-Power HL-350VDX User Manual

4. Transceiver:

If this amplifier is driven with more than 50W, final power transistors may be
killed due to over-drive.
Check if the output power of the driving transceiver is within the designed
input power ranges of this amplifier.

5. Access To Internal Parts:

This amplifier is carefully assembled and adjusted with sophisticated RF
measurement instruments.
Avoid making access to any of the parts inside.
Or it may cause the trouble of the amplifier.
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